Generally, the wood used for wooden fire doors shall be subject to corresponding fire retardant treatment to ensure that the wood will not be ignited quickly in case of fire. As an important fire isolation and personnel escape equipment, wooden fire doors are generally set at the corridor entrances, emergency exits and distribution shafts of high-rise buildings and public places.

Mga pultahan sa sunog sa ZHTdoors, 31 ka tuig nga kasinatian sa produksiyon sa mga pultahan sa sunog ug Windows. Ang nag-unang UL fire doors, EN fire doors, BS EN fire doors, etc.,.We have certification.ZHTdoors support OEM and free design.Our advantages:good quality, factory price, good service.Welcome to consult us.